Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6202747 | Hydraulic well packer and method | Rodger D. Lacy, John Hughes | 2001-03-20 |
| 6112816 | Single-phase annulus-operated sliding sleeve | Diana Orzechowski | 2000-09-05 |
| 5564675 | Subsurface safety valve of minimized length | Thomas G. Hill, Jr., Winfield M. Sides, III | 1996-10-15 |
| 5513703 | Methods and apparatus for perforating and treating production zones and otherwise performing related activities within a well | Aubrey C. Mills, John A. Barton, Neil H. Akkerman | 1996-05-07 |
| 5413173 | Well apparatus including a tool for use in shifting a sleeve within a well conduit | Aubrey C. Mills, John A. Barton, Neil H. Akkerman | 1995-05-09 |